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No- 750,189. PATENTED JAN. 19, 1904. E. HAYDOGK.

HAND PLANE.

v APPLIOATION FILED n20. 14,1901.

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No. 750,189. PATENTED JAN. 19, 1904 v n HAYDOGK.

HAND PLANE.

. 'APPLI 0ATION FILED DEG. 14, 1901.

N0 MODEL. 3 SHEETS-SEER? 3.

Y (@QiQ UNITED STATES Patented January 19, 1904.

PATENT OFFICE.

HAND-PLANE;

SPECIFICATION forming part of Letters Patent No. 750,189, dated January19, 1904.

Application filed December 14, 1901. Serial No. 85,900. (No model.)

To all whom, it may concern:

Be it known that I, EDWARD HAYDOCK, a subject of the King of GreatBritain,residing at 7 5 Ackroyd street, Higher Openshaw, Manchester, inthe county of Lancaster, England, have invented a new and usefulImproved Hand- Plane, of which the following is a specification.

This invention relates to hand-planes for woodworking, particularlypattern-making, in which curves and other irregular forms are requiredto be produced in patterns and coreboxes and other like work.

The object of my invention is to enable plane-irons with different formsof cutting edges to be employed in a metallic stock having a flat solein combination with a wood sole that is capable of being fixed to orremoved therefrom, whose face is either formed to any preferred curve orof other required shape, and to providemeans for holding said solefirmly in position; also, quick and automatic adjustment of theplane-iron.

In the accompanying drawings, illustrating my invention, and to which Ihereinafter refer, Figure 1 is a side view, and Fig. 2a longitudinalsection, of my improved plane. Fig. 3 is a plan of the stock-sole withthe planeiron and adjustments removed. Fig. 4 is an angular transversesection on line A B, and Fig. 5 a like section on line C D as seen inthe direction of the arrow in Fig. 2. Fig. 6 is a plan of adjustablesole. Fig. 7 is a crosssection of a detachable convex wood sole forplaning the inside of a cylinder, while Fig. 8 is a View of a concavesole for planing the outside of cylindrical bodies.

In the views the same letters refer to like parts.

According to this invention I form a metallic stock of malleable iron orsteel, either cast or pressed, or other preferred metal, havingkey-shaped holes therein, as shown at d on plan in Fig. 3. These holesare for the reception of small studs or set-screws c, which are fastenedin small castings, as c, fixed in an adjustable wood sole, as 1'. (Shownin Figs. 2 and 6.) The position of these castings in the adjustable solecorresponds with the holes in the stock-sole a.

The facing on the upper side of the key-shaped holes (Z in thestock-sole is slightly taper to insure the screws 0 drawing theadjustable sole perfectly tight and rigid to the stock-sole when it isfitted thereon. The adjustable soles may be flat for ordinary smooth,jack, or trying plane purposes, or they may be of any required shape orradius for curves,coreboxes,or like work, as shown in Figs. 7 and 8.Ifix a triangular slide g between the side walls 6 of the stock by meansof screws inserted in the stock-sole. The holes for the screws areslightly elongated to permit the slide to be moved a little backward orforward in order to alter the pitch of the plane-iron for planingdifferent kinds of wood, either with or across the grain, as required.The aforesaid slide has a slot g formed lengthwise in its angular face,through which a square-headed stud g 1s passed. Said stud is squareunder the head and has a hole through the head,with a screw-threadformed'therein. The projecting end of the stud is screwed or looselyriveted into a carrier or adjusting-lever in, which carries aplane-iron,as'Z, by means of a pin is, that enters one of the smallholes Z, formedat equal distances along the center of the plane-iron if a single ironis employed for radii or curved work or into a small hole in I the backiron for ordinary planing. The aforesaid stud, with the'plane-iron, israised and the adjusting-lever Z0 being turned a little to one side orthe other and are held firmly in position by a curved spring q, the endsof which are pressed against the face of the planeiron by a cam-lever m,the lower end of which is formed with a curved projection m at each sideand hinged to the center of the aforesaid spring, as shown at q in Fig.2. A lug 5 projects inwardly from each of the side walls of the plane,under which the curved projections m are placed when the lever m is inthe position shown by dotted lines. When the free end m of the lever isturned down, as shown, the spring q is compressed and the ends pressingon the face of the plane-iron keep it firmly in position, perfect andrapid means of adjustment being thereby obtained. The mouth of the planeif employed as an ordinary metallic plane without wood soles may beenlarged or reduced by a metallic slide fitted to the stock sole by astud passing through an elongated hole and secured by a nut. By thesemeans a direct positive motion is obtained for forward feed and lateraladjustment of plane-iron, and if one iron is ground to a two andone-half inch'radius it would also work to any radius extending to aboutfour inches without regrinding or altering. A quarter of a turn of thescrew f would give one one-hundred-andtwelfth part of an inch, orthereabout, forward adjustment of the plane-iron, and by the lateraladjustment the inconvenience of exercising great care in sharpening orgrinding the iron to correct form is avoided.

A sole-plate to do any kind of special work that is usually done byspecial planes may be made by the workman himself and fixed in themanner described for use as an ordinary smooth, jack, or trying plane.

I claim as my invention 1. A hand-plane consisting of a metallic stockwith keyhole-slots in the stock-sole, the

enlarged opening of the keyhole being toward the front of thestock-sole, wooden soles carrying screws adapted to be passed throughthe keyhole-slots and inclined wedge-surfaces on one of the parts,whereby, upon forcing the metal stock forward the wooden sole willbecome secured to the metallic stock and by striking the rear of thesole it will become detached, substantially as described.

2. Ahand-plane having a metallic stock with a flat sole-face, elongatedrecesses in said sole and a number of separate wood soles, each-

